Polderij IT has discontinued
marketing and development for the ERD Concepts
application and related tooling effective
immediately. ERD Concepts is no longer generating
enough revenue to support the costs of maintaining
it. Thank you
for your support and cooperation
during the past 15 years.

The software is
now available with a MIT license
and is completely free. Product support remains available
for 1 year from date for licensed users.

ERD Concepts is a database designer and sql query
tool for all major databases. Making a complete and visually
attractive Entity Relationship Diagram (ERD) becomes
a breeze, even for less experienced users.
The software will guide you
during your design efforts with easy to follow
steps...